CN102596786A - Elevator - Google Patents

Elevator Download PDF

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Publication number
CN102596786A
CN102596786A CN2010800502544A CN201080050254A CN102596786A CN 102596786 A CN102596786 A CN 102596786A CN 2010800502544 A CN2010800502544 A CN 2010800502544A CN 201080050254 A CN201080050254 A CN 201080050254A CN 102596786 A CN102596786 A CN 102596786A
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CN
China
Prior art keywords
elevator
sedan
chair case
driver element
retainer
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Granted
Application number
CN2010800502544A
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Chinese (zh)
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CN102596786B (en
Inventor
赫尔曼·迈耶
尤里克·尼恩德林格尔
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Individual
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Individual
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Publication of CN102596786A publication Critical patent/CN102596786A/en
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Publication of CN102596786B publication Critical patent/CN102596786B/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B11/00—Main component parts of lifts in, or associated with, buildings or other structures
    • B66B11/02—Cages, i.e. cars
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B11/00—Main component parts of lifts in, or associated with, buildings or other structures
    • B66B11/02—Cages, i.e. cars
    • B66B11/0226—Constructional features, e.g. walls assembly, decorative panels, comfort equipment, thermal or sound insulation
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B11/00—Main component parts of lifts in, or associated with, buildings or other structures
    • B66B11/02—Cages, i.e. cars
    • B66B11/0226—Constructional features, e.g. walls assembly, decorative panels, comfort equipment, thermal or sound insulation
    • B66B11/0246—Maintenance features
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B5/00—Applications of checking, fault-correcting, or safety devices in elevators
    • B66B5/0087—Devices facilitating maintenance, repair or inspection tasks
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03D—WIND MOTORS
    • F03D80/00—Details, components or accessories not provided for in groups F03D1/00 - F03D17/00
    • F03D80/50—Maintenance or repair
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B11/00—Main component parts of lifts in, or associated with, buildings or other structures
    • B66B11/04—Driving gear ; Details thereof, e.g. seals
    • B66B11/06—Driving gear ; Details thereof, e.g. seals with hoisting rope or cable positively attached to a winding drum
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B9/00—Kinds or types of lifts in, or associated with, buildings or other structures
    • B66B9/16—Mobile or transportable lifts specially adapted to be shifted from one part of a building or other structure to another part or to another building or structure
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
    • F05B2240/00—Components
    • F05B2240/90—Mounting on supporting structures or systems
    • F05B2240/91—Mounting on supporting structures or systems on a stationary structure
    • F05B2240/916—Mounting on supporting structures or systems on a stationary structure with provision for hoisting onto the structure
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B50/00—Energy efficient technologies in elevators, escalators and moving walkways, e.g. energy saving or recuperation technologies
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/70—Wind energy
    • Y02E10/728—Onshore wind turbines

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Combustion & Propulsion (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Types And Forms Of Lifts (AREA)
  • Cage And Drive Apparatuses For Elevators (AREA)
  • Valve-Gear Or Valve Arrangements (AREA)
  • Valve Device For Special Equipments (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Power-Operated Mechanisms For Wings (AREA)
  • Lift-Guide Devices, And Elevator Ropes And Cables (AREA)

Abstract

The invention relates to an elevator having a drive unit. The invention further relates to a wind power plant having an elevator. In order to reduce the costs for the elevator and thus to make the elevator more economically attractive, the elevator of the type indicated above is characterized in that a cabinet is used as the travel car. The invention is thereby based on the idea that the fundamental construction of a cabinet, having a floor, side walls, and a door, is no different from a travel car produced specially for an elevator. There are, of course, differences, such as in the suspension and operation of the door, but said differences can be overcome insofar as said differences oppose a use of a cabinet as the travel cab, such that the total complexity is still less than the complexity for a travel cab custom designed for the elevator.

Description

Elevator
The present invention relates to a kind of elevator that has driver element.In addition, the present invention relates to a kind of wind energy plant that has elevator.
Especially under the situation of large-scale wind energy equipment, nowadays the elevator that is used to the personnel that transport and material is common.This has for example saved maintenance technician, in the gondola of wind energy plant, want work, through usually in pylon straight up the cat ladder (Steigleiter) of guiding waste time and energy ascend a height.Nowadays having is not under the wind energy plant situation of axle center height (Nabenhoehen) of uncommon about 140m, so this means vertical the ascending a height (and also having decline subsequently certainly) that surpasses this 140m just.In addition, if consider in a plurality of wind energy plants, to work during maintenance group on weekdays, then be clear that utilizing cat ladder can be unusual physical load at once.
Under the situation that the size of wind energy plant increases and wherein the importance of wind energy increases therein, set up main equipment more and more, wherein elevator if not essential also be desirable at least.Thus, elevator also becomes cost factor more and more, because it no longer individually occurs in wind energy plant.
At this, point out that usually following publication is as prior art: DE 10 2,005 009 500 A1, WO 97/11020 A1, DE 101 04 351 A1 and DE 10 2,006 034 299 A1.
Therefore task of the present invention is, so reduce the cost of elevator and make elevator more attractive economically.
For this reason, the elevator that starts mentioned type is characterised in that the cabinet as the sedan-chair case.
At this, the present invention based on understanding be, cabinet its have aspect the basic structure of bottom, sidewall and door with especially to elevator and the difference of the sedan-chair case made.Certainly distinct, for example in the suspension gear and the operating aspect of door, yet if these differences its hinder cabinet as the sedan-chair case, can be removed, make expense always also be lower than the expense of the sedan-chair case that specially makes up generally to elevator.
Transportation for the saving space that can realize elevator to its place to use; Be designed with on the opposed side at the upside of sedan-chair case the retainer that essentially horizontally is provided with and on vertically move towards layout, driver element basically supporting mass, wherein this supporting mass releasably is connected with retainer and can passes vertically.Thus, can driver element to be pushed into for transportation in the sedan-chair case, to make that the outside dimension of sedan-chair case is important in order only transporting, and the driver element transport space that need not to add.
For this reason; On the go is based upon the connection between driver element and the sedan-chair case in first state; Make the totality space of sedan-chair case be ready for shipping goods and/or personnel, and in second state of vertically passing, driver element remained in the state of sinking of the saving transport space in the sedan-chair case.
In order between travelling position and mode of operation, to switch, only unclamp the connection between driver element and sedan-chair case, driver element is introduced desirable state, and setting up again or the tension connection in the state in addition accordingly.Other intervention is optional.Thus, can very simple and realize the switching between travelling position and the mode of operation with saving time.
In a preferred improvement project of the present invention, elevator system is characterised in that the driver element that has continous way winch (Durchlaufwinde).Thus, in pylon, need not time-consuming track and lay (Verschienung), but two abundant design-calculated cables only need be provided.One is used for normal operation, and one as catching cable, so that under the situation of technical failure, can keep elevator.
Particularly preferably be; The The whole control device is arranged in the driver element; And the executive component that is connected to control setup reaches the sedan-chair case downwards always, make can need not to control setup and/or it on the bonded assembly executive component any intervention between travelling position and mode of operation the conversion driving unit.
Cost-effective another possibility obtains through following mode: a kind of state of special sedan-chair case will be usually as the cabinet of switch cubicle sedan-chair case as elevator.Switch cubicle can be with low cost ground make in large quantities, can and can be complementary as the sedan-chair case of elevator with simple mode and special demands as the sedan-chair case of elevator, make and also do not lose cost advantage thus.
Particularly advantageously be; Use in wind energy plant according to elevator of the present invention, if because do not consider to install, the elevator there only is used once in a while; Though and therefore must satisfy the basic demand for elevator, yet special traveling comfort is not to be essential.
The common wind energy plant that can be equipped with according to elevator of the present invention always comprises pedestal or other foot, and the steel pylon of pylon, especially tubulose or concrete towers set up and stand above that, and the end is provided with the wind energy plant gondola above that.On gondola, be fixed with the aerodynamics rotor, it should be placed in by wind and rotatablely move, and have for this reason at least one, common three rotor blades.Gondola comprises that in addition some elements are used to drive wind energy plant; It can comprise the electrical generator with the coupling of aerodynamics rotor usually; And various other elements such as driver element, being used for gondola is rotated to change its position of orientation, beacon perhaps for example flies; So that make gondola for air traffic, see more easily, only enumerate some examples here.Especially can be arranged in the pylon according to elevator of the present invention, so that one or more personnel and/or material are transported to gondola from pylon foot, and/or opposite.
Further described the present invention by accompanying drawing below.Wherein:
Fig. 1 shows the perspectivity overview according to elevator of the present invention;
Fig. 2 shows the switch cubicle body;
Fig. 3 shows the switch cubicle body that has door and lateral parts;
Fig. 4 shows according to the switch cubicle body of Fig. 3 and additionally shows driver element;
Fig. 5 shows the switch cubicle body according to Fig. 4, yet has the driver element that in the sedan-chair case, sinks;
Fig. 6 shows the simplification view in sedan-chair case in-to-in function part;
Fig. 7 shows the simplification view in the exterior function part of sedan-chair case; And
Fig. 8 shows from the view of the control housing of looking sideways towards sedan-chair case in-to-in.
The complete elevator that has sedan-chair case 10 and driver element 11 has been shown in Fig. 1.Sedan-chair case 10 mainly comprises the switch cubicle body 12 as supporting structure.In this switch cubicle body 12, sliding door 14 is installed, in this sliding door, makes up fenestrate 16 again.Lateral parts likewise is installed and also has (not shown in this Figure) rear wall certainly.What in this accompanying drawing, can see is the lateral parts 18 that has window 20.
Show guiding cable pulley 22 and the supporting rope guiding device 24 that is used to guide cable 74 in addition on the appreciiable left side in the figure, supporting rope 70 guides through this supporting rope guiding device.Corresponding guiding cable pulley is positioned at according to the opposed of sedan-chair case 10 of the present invention and on the also unshowned in the figure side.There, what have also that (unshowned equally among this figure) be used to catch cable 72 catches the cable guiding device, and it is maintenance sedan-chair case under normal running driving device failure condition for example.
Retainer 30 is installed on the upside of switch cubicle body 12, and on this retainer 30, supporting mass 32 is installed again, these supporting masses extend straight up.On these supporting masses 32, top board 34 is arranged, their protection elevators avoid falling the influence of parts.In addition, continous way winch 36 is installed on retainer 32, can elevator is risen on desirable direction or descend along supporting rope 70 by it.This is outside equipped with control housing 38, wherein is mounted with the The whole control device.In addition, in this accompanying drawing, can see capture device 50, when actuating device fault that continous way winch 36 and supporting rope 70 constitute, capture device remains on elevator as safety apparatus and catches on the cable 72.Except supporting rope 70 with catch the cable 72, also be provided with guiding cable 74, it guide elevator, feasiblely avoids waving of elevator.
Be provided with cable 92 in order to supply power, it is introduced in the driver element through cable guide device 90.At last, show bottom switch 80, it identifies runs into bottom (perhaps meeting other obstacles) and can be so that under the lift.
Fig. 2 has illustrated switch cubicle body 12 in transparent view, the supporting structure of its sedan-chair case 10 formed according to the present invention.Nowadays this switch cubicle body 12 is in enormous quantities that make and be more inexpensive parts therefore, yet it has enough intensity and bearing value, so that can accomplish personnel and transport of materials.
Fig. 3 shows this switch cubicle body 12 that has mounted sliding door 14, wherein is provided with fenestrate 16.In addition, can see the lateral parts 18 that has other window 20 in the figure, and guiding cable pulley 22 and supporting rope guiding device 24 have been shown in the lower area of lateral parts 18.
Can know in the figure see be, can realize being used for the sedan-chair case of elevator through fairly simple measure from switch cubicle body 12s, it satisfies all requirements, yet obviously more cheaper than standard sedan-chair case price generally.
In Fig. 4, the view of Fig. 3 is supplemented with retainer 30, it is fixed on the top of switch cubicle body 12.Supporting mass 32 is installed again on these retainers 30 vertically.Top board 34 is arranged on supporting mass 32.This top board 34 prevents that parts from falling into sedan-chair case or actuating device from top.Supporting mass is provided with continous way winch 36, control housing 38 and capture device 50, can realize the radical function of elevator by it.In addition, be provided with guiding cable pulley 22, it is led elevator during operation along the guide wire cable index that exists, and has stoped the swing of elevator thus.On the downside of sedan-chair case 10, show bottom switch 80, its identification elevator is fallen on the last perhaps obstacle in bottom, and elevator is stopped immediately.
Supporting mass 32 releasably is connected with retainer 30, and can on the plotted of elevator, pass.Thus, can be sunk in the sedan-chair case 10, make elevator need less space for transportation, promptly needed the space of sedan-chair case 10 itself basically by the driver element of these supporting masses 32 supportings.
This is shown in Fig. 5.In this accompanying drawing, on retainer 30, can see cover plate 34, and the remainder of driver element sinks in the sedan-chair case 10 together with supporting mass 32 (not shown in this Figure).
In addition, the right side of elevator has been shown in this transparent view, it has the sidewall 19 on the right and the sidewall window 21 on the right, and has external operating unit 60 and the guiding cable pulley 26 that illustrates on the sidewall 19 on the right and catch cable guiding device 28.
In order to operate elevator, need at least one operating unit certainly.Fig. 6 shows this operating unit 62, and it is inner that it is arranged on the sedan-chair case, and upwards or the operation push-button that goes also comprises switch, reset key, emergency stop switch and the work/interference light-emitting device that is used to connect control setup downwards except being used for.Thus, can control important elevator function and await orders or disturb with signal indication work.
Fig. 7 shows external operating unit 60, for example can be at transport of materials time operation basic function through it.When not carrying out personnel when transporting, use this external operating unit 60.So, for example can use button " rising " to place work with the elevator that material is filled, so that the bottom of material slave unit is upwards transported.Cause going automatically in the opposite direction with button " decline ", promptly from the top down.
Fig. 8 shows the side 40 of control housing 38, and this side is towards the inside of sedan-chair case.On this side of control housing 38, a plurality of light-emitting devices and switch are installed, they are with signal indication different working state or allow the definite function of operation.In normal operation, elevator is operated through operating unit 60 or operating unit 62.In case on one of these operating units, demonstrate interference, then the operator can be through looking up, promptly it seems the further information about interference type that obtains towards the downside 40 of control housing shown in Figure 8 38.
Switch with " illumination " mark is used for turning on and off of illumination equipment.
Light-emitting device with " control voltage 24V ok " expression shows: whether the 24V voltage for the work without a doubt of control setup is required is available, and whether elevator can be driven.
Light-emitting device " rotation field of fault " shows: the rotation field on electrical motor is normally or abnormal for desirable work.The light-emitting device indication fault of connecting.This for example can be the phase of the mistake in power supply or the incorrect link of rotation field.
" door is opened " light-emitting device shows that exactly the door of elevator is not correctly closed.If door is correctly closed, then should show also can indication fault door switch.So the two has all caused elevator not to be placed in the work.In this way, only guaranteed that elevator just goes under the situation of the failure-free and the door of correctly closing.
For example when reaching lower state or switch break the barriers and by when operation, light-emitting device " lower limit switch " shows triggering (so-called sedan-chair case bottom switch) lower limit switch.The triggering of top limit switch or emergency stop function is used signal indication through light-emitting device " top limit switch/promptly stop ".Continue luminous expression and reach the top mode of operation, the urgent halted state of flicker expression topmost.
The overload of light-emitting device " overload " expression elevator, and light-emitting device " acquisition equipment triggerings " indicates acquisition equipment and elevator is fixed on catches on the cable, make can not continue under the situation that does not discharge acquisition equipment mobile.
Because the life-span is also depended on the reliable function of actuating device and safety apparatus,, in this service intervals, must check assembly times without number so stipulated service intervals.In this example, it is 200 hours intervals.Also be provided with the demonstration light-emitting device, so that indicate this to expire at interval to the user for this reason.This light-emitting device identifies with " safeguarding in 200 hours ".
At last; Be provided with switch " cross-over connection limit switch "; When for example under the situation of installing for new place in operation or at needs, changing under the situation of cable, switch " cross-over connection limit switch " can be realized the cross-over connection limit switch and realize the inefficacy setting of this switch thus.

Claims (9)

1. an elevator has sedan-chair case and driver element, it is characterized in that the cabinet as the sedan-chair case.
2. elevator according to claim 1 is characterized in that the releasable connection between sedan-chair case and driver element.
3. elevator according to claim 1 and 2; It is characterized in that on the upside of sedan-chair case (10) retainer (30) that substantial horizontal on the opposed side is arranged with and on vertically move towards layout, driver element basically supporting mass (32), wherein said supporting mass (32) releasably is connected with retainer (30) and can vertically passes.
4. elevator according to claim 3; It is characterized in that first state; Said supporting mass (32) can be connected with retainer (30) in said first state; And second state of passing from said first state vertically with given in advance degree, said supporting mass (32) can be connected with said retainer (30) in said second state equally.
5. according to one of aforesaid right requirement described elevator, it is characterized in that having the driver element of continous way winch.
6. according to one of aforesaid right requirement described elevator, it is characterized in that the The whole control device is arranged in the driver element.
7. according to one of aforesaid right requirement described elevator, it is characterized in that being connected to the executive component on the control setup, said executive component arrives in the sedan-chair case always.
One kind with switch cubicle as the application of the sedan-chair case of elevator and/or a kind of with of the application of switch cubicle body as the sedan-chair case body of elevator.
9. wind energy plant, it has according to the described elevator of one of claim 1 to 7.
CN201080050254.4A 2009-11-06 2010-11-03 elevator Active CN102596786B (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE102009053249.8 2009-11-06
DE102009053249A DE102009053249A1 (en) 2009-11-06 2009-11-06 elevator
PCT/EP2010/066667 WO2011054833A1 (en) 2009-11-06 2010-11-03 Elevator

Publications (2)

Publication Number Publication Date
CN102596786A true CN102596786A (en) 2012-07-18
CN102596786B CN102596786B (en) 2015-07-29

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US (1) US9260274B2 (en)
EP (1) EP2496509B1 (en)
JP (1) JP5542949B2 (en)
KR (1) KR101395982B1 (en)
CN (1) CN102596786B (en)
AR (1) AR078919A1 (en)
AU (1) AU2010317084B2 (en)
BR (1) BR112012010687A2 (en)
CA (1) CA2777165C (en)
CL (1) CL2012001177A1 (en)
CY (1) CY1117269T1 (en)
DE (1) DE102009053249A1 (en)
DK (1) DK2496509T3 (en)
EA (1) EA025970B1 (en)
ES (1) ES2566921T3 (en)
HR (1) HRP20160349T1 (en)
HU (1) HUE027045T2 (en)
MX (1) MX2012005145A (en)
NZ (1) NZ599467A (en)
PL (1) PL2496509T3 (en)
RS (1) RS54646B1 (en)
SI (1) SI2496509T1 (en)
TW (1) TWI474962B (en)
WO (1) WO2011054833A1 (en)
ZA (1) ZA201202823B (en)

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CN104590976A (en) * 2015-01-21 2015-05-06 朱志明 Domestic elevator adopting socket type structure
CN105253752A (en) * 2011-08-26 2016-01-20 通力股份公司 Method for driving an elevator
CN105712216A (en) * 2016-03-31 2016-06-29 武夷学院 Press-rail hoisting device surrounding factory building
CN107187998A (en) * 2017-05-24 2017-09-22 住友富士电梯有限公司 A kind of elevator for being easy to repair

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DK3124427T3 (en) * 2015-07-27 2018-06-25 Nordex Energy Gmbh ACCESSORIES ON A BUILDING WORK AND TOWER TO A WIND ENERGY PLANT
EP3239089B1 (en) * 2016-04-27 2019-01-09 Aip Aps Wind turbine with elevator system
DE102016109859A1 (en) 2016-05-30 2017-11-30 Wobben Properties Gmbh Passenger elevator of a wind energy plant
WO2018011458A1 (en) * 2016-07-15 2018-01-18 Kone Corporation Elevator arrangement to open the roof of an elevator car
EP3372544B1 (en) * 2017-03-09 2021-02-24 Otis Elevator Company Moveable maintenance assemblies for elevators
US11634303B2 (en) * 2018-09-18 2023-04-25 Hailo Wind Systems GmbH & Co. KG Elevator car and method of making same
US11059701B2 (en) * 2018-12-06 2021-07-13 Tk Elevator Innovation And Operations Gmbh Methods and apparatuses for lifting elevator cars during installation
CN110817635A (en) * 2019-11-19 2020-02-21 亚洲富士电梯股份有限公司 Elevator test system based on self-defined setting
EP3909897A1 (en) * 2020-05-12 2021-11-17 KONE Corporation Elevator car, elevator and method
DE102020003381A1 (en) 2020-06-04 2021-12-09 Mike Pfennig Device for fixing and guiding cables on cable cars and method for using this device
CN114348925B (en) * 2021-12-29 2023-09-05 湖北锐昊建筑工程有限公司 Safety device for deep foundation pit of building site
EP4286315A1 (en) * 2022-06-03 2023-12-06 Otis Elevator Company Elevator car with moving electrical box

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